Mast support



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4July 9, 1929. R. H. FERRAIOLI MAST SUPPORT Filed My` 15, 1925.

Patented July 9, 1929..

PATENT OFFICE.

RAMO H. FERRAIOLI, OF NEW YORK, N. Y.

MAST SUPPORT.

Application led May 15, 1925.

This invention relates Ato masts adapted for use in connection with the antenna ot radio/ receiving and sending apparatus. The invention has particular reference to mastscapable ot installation upon the roots et buildings for attachment or mounting upon chimneys, pent-houses and parapet walls. At the present time such masts are generally formed of wood or pipe of a character most conveniently at hand to the user and the manner oit securing the same in place varies considerably with the skill of the one erecting it. The owners ot buildings and particularly the owners ot apartment houses whose tenants are desirous ot installing radio receiving or sending apparatus are continually sul'lering trom 'the unskilled efforts oi.l their tenants in installing the masts on the roots of the buildin 0s to chimneys and the like which results 'trequently in the destruction ot the roots with consequent leaks therein as well as a generally unsightly job which detracts from the appearance of the building.

It is an object ot the present invention to provide a mast which is readily formed with a minimum number ot operations, of standard material, and which can, be readily installed in place by one having little skill in the use of tools and without damage to the root or other supporting means. Accordingly the mast is formed of metal tubing and metal supports lor the same which may be readily secured to the roof or wall of the building by simple operations.

The invention also has for one ot its objects a mast which is adjustable in heiglit and capable of being` readily taken down into a plurality et relatively short sections and telescoped whereby space may be saved in storage oli equipment.

The invention further :resides in the littings adapted to be associated with the mast whereby its installation facilitated. For instance, brackets are provided which are adapted to receive the mast and be secured as against a parapetwall in a manner which is within the skill ol the most inexperienced. To this end the brackets are formed as castings and each bracket is adapted to be secured to a wall or chimney by a single screw or expansion bolt, or the like advantage being taken of the construction el? the bracket to facilitate the insertion et the screw or bolt within the wall.

f"The invention also resides in the particu- Serial No. 30,550.

lar construction and conliguration of the individual elements going to make up the device as a whole as will. be more apparent from the following detailed description oil the accompanying drawings illustrating preferred embodiments ot the mast and ot the supporting means thereitor. ln the drawings: i i

Figure l represents a mast adapted to be secured to the root, wall, .or chimney or the like by means oit specially tormed brackets.

Figure 2 is a view looking trom below and allowingI the V'ap such as is applied to the mast illustrated in Figure l.

Figure 3 is a view in vertical section taken in the plane indicated by the line in Figure 2 and looking .in the direction of the arrows.

Figure Ll is a view, looking lrom above, ol one et the brackets (the upper one) disclosed in Figure l taken along the line in Figure 'l and looking in the direction oil' the arrows.

Figure 5 is a transverse vertical section ot the bracket illustrated in Figure 4l: taken along the line in Figure l and looking in the direction oit the arrows.

Figure (3 is a transverse vertical, view oi `the lower bracket illustrated in Figure 1 taken along the line 6 6 in that Figure and looking in the direction o'lI the arrows.

The mast i'ormed ot a base section fm. and an upper section n. Base section m may be a length oit pipe such as gal ianiiied iron pipe. Section n, may be formed as a solid rod. The lower portion oli section fn. may be turned down as at 'u' to a diameter just sulilcient to enter the upper end ol base sect-ion m. and enter for a sullicient distance therein "to provide adequate support. It

`desired sections fm. and n, may be drilled as at m, 91,2, respectively, to receive a pin such as the cotter pin 0. By so constructing the sections mV and n with what may `be termed the slip joint illustrated at n a very thin mast may be used which will have adequate strength. For instance, the section m may be formed with tlufee-quartcr inch pipe while the upper section may be either three- `quarter inch in diameter or one halt inch.

A mast olf this smaller diameter mounted upon the root et a tall building will b'e practically invisible to the eye ot an observer from the ground.

Mounted upon the upper end of section n is a cap member p illustrated in detail on a larger scale in Figures 2 and 3. The cap member is formed on its lower side with a cylindrical recess p of a diameter just sulicient to receive the end of, section fn. The Walls of the recess may be threaded as at p2 to provide for a screw connection between a similarly threaded end n? of section u. In instances WhereA the upper endiof section n is not threaded the cap may be provided with anl aperture p3 to receive ay pin Q, adapted to pass through. a. registering aperture in the. section n and` thus secure therap thereto.. Cap. p may be provided upon one side thereof with an` vaperturep4 for the reception ofaguy wire r. Diametricallyr opposite aperturep4 the cap may be provided With a bifurcated portion havingfarmspformed at their ends with bearings. p6 fora pin; s upon which may turn a. roller4 .O1Whe,el s having a.. peripheral groove s2 fork the reception ,of a cable s to which is secured the antenna.

A modiiedlbnacket ,according to the present invention is illustrated; at t. rll'his brack- `et isv formed with. a broad flat base portion 25 of any `convenient configuration and a transverse Web portion 252 formed at its outer endl With aV cylindrical` lbearing t formed with ai eylindricalf` aperture t* .for the reception ofthe mast section, say mi. Centrally of the bracketth'ere-are formed substantially parallel, vertically disposed. webs t5. 'These Websfseparate aV space: t6 passing completely through the bracket as shown clearly inFigure 5i Centrally ofY the base section a and opening into the space z5 there is formed an aperture t7 for the reception of a ,boltl a. Bolt u is. formed withna. square head'u. ofa diameter sirflicient to it within the spa-cerf6 Without turning.l

In-the installation ofthe bracket it is'proposed to provide a sta-r'punch, for instance, with Which` the single aperture necessary may bed-rilled: in .the Wall@ J. The aperture t7 is located preferably in the transverse medium plane ofithe bracket.` Bolt u which preferably takesthe; form. of an expansion bolt. which` is already inserted in the aperture. t7 is, then. inserted: in the hole in the Wall-1 and threaded thereniithin by turning the` square heaclwu by means ofthe bracket which thus vtakes the place. of a wrench.

The starpunch or any other convenient tool may be passed through the apenture 254 to serve as ai handle .for Vthe bracket when. used as awvrench... The turning of the bracket may bey continued until thebolt u is forced home.

The lower bracket o is also. adapted tobe seeuredtoa wallby a singlefscrew as indicated inl Figurev l.' This bracket is formed with a base portion-.11 and a transversely disposed Web o2 formed atits outer end with a bearing o3 provided with a. cylindrical re cess if* for the reception of the end of the section m.. The bottom of the recess n may be closed or provided with an aperture fr Ofless diameter than the diameler of the recess e" in order to provide a Isupport 'for the mast section en, while at the same time providing for the escape of any liquid which might be entrapped therein. 'l`he bracket is re-enforcedbelow the web r2 by .means ol a centrally disposed web r. Above the web il? a` space e7 is formed by means ol' parallel webs @s `in the base portion o and opening into the space o7 is an aperture o l'or the passage of a bolt similar to the bolt Jihrough t7. lt willi be apparent that the method of securing the bracket to a wall y' is similar to the method of securing the bracket il, that is, the bracket may be used. as the wrench for screwing the expansion bolt home. ln this instance, the aperture o is disposed above the transverse .medium plane of the bracket. fr pin #le may also secure the .mast in brackete.

It will: be apparent that a mast and brackets therefore have been provided which is capable of installation upon the roofs of buildings by alliXing to chimneys, parapet walls or peut houses without the requirement of skill and: with the simplest of tools. it is easily nnn'iufactured at a ininimum expense; can be taken down and redinfed in size for shipment and storage and when in place is not only sightly but of small diameter as to be practically invisible .from a compznatively short dista-nce. liy means of the present invention: the masts may be secured to opposed parapet walls of an apartmetn house whereby the full length of the roof is availed of for the aerial and while being easily removable is nevertlnless securely installed in the interest of safety. The mast is lireproof and durable; 'lhe modified brackets according to the present invention` are particularly applicable to the situa-tion in hand since it is only necessary to line up two holes in the wall one immediately below the other which, experience has shown, is much more easily accomplished by one unskilled in the use of tools than. Where ay pllnality of laterally .spaced holes are necessary.

Various modili 'ations may be made in the form and configuration of the component elements of the device according lo the present `invention and their interchanging is possible without departing from. the spirit and scope of the invention.

What I claim is:

As an article of nianufacture, a support for a mast comprising, in combination` securing means having a head formed with parallel plane sides, and an integral bracket formed with a. mast receiving portion, a` transversely elongated 'base portion provided with an aperture for the reception. of the securing means, substantially parallel Webs extending between the mast receiving portion and the base upon opposite sides, respectively, of the aperture and defining, therebetween, it receiving` space for the head o'i' the securing inerme, the Webs cooperating with the Sides et the head whereby the bracket may serve :1S n. wrench to insert the securing Ineens in e. Wall (hiring the attach.-

ztnd substantially nornml thereto.

Mey A. 1'). 1925.

RAMO H. FERRAOLI.

nient and removal of the bracket to the Wall and Webs extending between the mast re- Ceving portion sind the heee upon opposite Sides, respeetvi-iiy, of the first named Wehe This eyecieetion siened this t-th da, f of 

